ASCII to Binary Converter
Convert ASCII characters and ASCII codes to binary representation instantly and accurately.
About ASCII to Binary Converter
The ASCII to Binary Converter transforms ASCII characters or ASCII codes into their binary (base-2) representation. Each ASCII character corresponds to a 7-bit or 8-bit binary number, making this tool essential for understanding how computers store and process text data.
This tool supports both text-to-binary conversion (entering characters to get binary) and ASCII code-to-binary conversion (entering decimal ASCII codes like 65 to get 01000001). It handles standard ASCII characters (0-127) and extended ASCII (128-255).
Input
Binary Result
How to Use
Choose Input Mode
Select whether you're converting from text characters (like "Hello") or from decimal ASCII codes (like 72, 101, 108).
Enter Your Input
Type the text or comma-separated ASCII codes into the input area. The converter accepts any printable ASCII characters.
Select Binary Format
Choose between 8-bit (standard, padded) or 7-bit (original ASCII) binary representation.
View Results
Click "Convert to Binary" to see the binary output. You can copy the result or view individual character conversions.
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Frequently Asked Questions
What is ASCII?
ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numeric values to letters, digits, and symbols. Standard ASCII uses 7 bits to represent 128 characters (0-127), while extended ASCII uses 8 bits for 256 characters (0-255).
What is the difference between 7-bit and 8-bit ASCII?
7-bit ASCII represents 128 characters (0-127), which covers basic English letters, digits, and symbols. 8-bit ASCII (extended ASCII) adds 128 more characters (128-255), including special characters and symbols used in various languages. Modern systems typically use 8-bit representation.
How do I convert a character to binary?
Each character has a decimal ASCII code (e.g., 'A' = 65). To convert to binary, convert that decimal to base-2: 65 in binary is 01000001 (8-bit) or 1000001 (7-bit). This tool automates this conversion instantly.
Can I convert non-printable characters?
This tool handles printable ASCII characters. Non-printable control characters (ASCII 0-31) like newline or tab can be converted using ASCII codes mode by entering the decimal values directly.
Is this tool free to use?
Yes, this ASCII to Binary Converter is completely free. No registration required. All conversions happen locally in your browser, ensuring privacy and speed.